What is the easiest way to copy a particular row from one table to
another (assuming all the columns are exactly the same). I want to
maintain a table ('backup_table') that has rows I have (or will be)
deleting from my 'original_table'. (Both tables have the same 68 columns).
I've tried
INSERT
I'm attempting to select records from my postgresql database using php
based on whether someone is at least 17 years old on the date of a
particular visit.
My sql is:
$db_sql = SELECT * from list WHERE ((visit_date - birth_date) = 17)'
$db_result = db_exec($db_sql)
$num =
I've look for a solution to this, but have only been able to find
solutions to delete duplicate entries in a table by deleting entries not
returned by SELECT DISTINCT.
What sql should I use to SELECT entries in a table that have two
particular column values that match?
For example, my_table
Thanks. Worked like a charm!
Bruce
[EMAIL PROTECTED] wrote:
Try
SELECT *
FROM mytable
WHERE (identification_number,date_of_birth) IN
(SELECT identification_number
, date_of_birth
FROM mytable m2
GROUP BY identification_number,data_of_birth
